I have an I2C bus, some devices should be controlled by a normal linux driver but an ADC and a DAC on this bus should be controlled by a real time xenomai driver because, after a READ from the DAC I have to write to the ADC every 500 usec. I tried to use the normal linux driver from a xenomai real time user mode task but reading DAC, doing some computations, and writing to the ADC takes more than 500 usec. I thought to write both a RTDM driver for my 8xx I2C controller and a normal linux driver, but, how may I serialize access to the 8xx I2C controller from these drivers?<br><br>Bye,<br>Antonio.<br><p> 
<hr size=1><a href="http://us.rd.yahoo.com/evt=49935/*http://games.yahoo.com">Bored stiff?</a> Loosen up...<br><a href="http://us.rd.yahoo.com/evt=49935/*http://games.yahoo.com">Download and play hundreds of games for free</a> on Yahoo! Games.